Surge Protection Device(SPD)
Time:2021-09-07
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ABB Surge Protection Device is an indispensable device in the lightning protection of electronic equipment. It used to be called "lightning arrester" or "overvoltage protector" in English abbreviated as SPD.
Even small power surges or peak voltages can ultimately destroy or affect the performance of expensive electronic equipment, such as computers, telephones, faxes, televisions, audio/video equipment, and other household appliances and tools. The widespread use of computer chips increasingly requires surge protection, because these chips are often very sensitive to voltage fluctuations. The ABB surge protector, like a power sponge, can absorb dangerous extra voltages and prevent most of these voltages from entering your sensitive equipment.
Energy surge protector
OVR includes three types of surge protectors, which are used to protect the power supply network:
Type 1 surge protector
In order to discharge to the ground, the main energy is entered by the current surge through the power supply line or through an external lightning protection system. The transmission and distribution station should be equipped with a Type 1 surge protector.
Type 1 surge protector is suitable for suppressing the current flowing through overvoltage, which is equivalent to the current generated by direct lightning strikes. This product has successfully passed the 10/350 waveform standard test (level I test).
ABB‘s MOV technology OVR Type 1 surge protector, with an impulse current capacity of 15 kA (in 10/350 µs waveform), is suitable for single or multi-pole, and can withstand direct lightning strikes. It has a low protection level (up to = 1.2 kV) and does not require decoupling coils.
Type 2 surge protector
The Type 2 surge protector can further reduce the voltage, because the voltage can still enter the power system downstream of the power distribution cabinet where the Type 2 surge protector is installed.
Type 2 surge protector is suitable for suppressing the current flowing through overvoltage, which is equivalent to the current generated by indirect lightning or operating overvoltage. This product has successfully passed the 8/20 waveform standard test (Level II test).
Its technology mainly includes non-linear resistance, and uses a variety of different networks (IT, TT, TNC, TNS), and all network voltages are from 57 to 600 V. In addition, they can provide high energy discharge capability (up to 100 kA in 8/20 µs waveform)
Two options:
Safely keep preventive maintenance
The product has integrated remote control indicator or light monitoring box
Type 3 surge protector
Type 3 surge protectors can provide additional protection for some very sensitive or expensive equipment (such as audio systems, computers, and televisions) and transfer the remaining overvoltage to the ground.
Type 3 surge protector provides a terminal protection for the equipment, and can be adjusted to 230/400V voltage in the multi-pole TT and TN network.
Data transmission line surge protector
OVR TC transmission line surge protector, used to protect the equipment connected to telephone lines, computer communication lines or small current loops. (Such as voltage: 6V, 12V, 24V, 48V or 200V)